DJ, J., A. FO, O. PA, and A. OM. “Nutritive Evaluation of Different Energy Sources With Maxigrain® Enzyme in Broiler Diets under the Tropical Climate of Nigeria”. Journal of Research in Biology, Vol. 6, no. 7, Nov. 2016, pp. 2124-30, https://ojs.jresearchbiology.com/ojs1/index.php/jrb/article/view/430.